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Hydrobromic acid(CAS No. 10035-10-6)

Hydrobromic acid HBr (cas 10035-10-6) Molecular Structure

10035-10-6 Structure

Identification and Related Records

【Name】
Hydrobromic acid
【CAS Registry number】
10035-10-6
【Synonyms】
hydrobromic acid 48%
hydrogen bromide cyl. with 2 L net~3.2kg
hydrobromic acid 62%
Hydrobromic acid 45% w/v soln. In acetic acid
Hydrogen bromide solution
Hydrobromicacidcolorlessliq
Hydrogen bromide
Hydobromic acid (47 %)
Anhydrous hydrobromic acid
Hydrogen bromide acetate solution
【EINECS(EC#)】
233-113-0
【Molecular Formula】
HBr (Products with the same molecular formula)
【Molecular Weight】
80.91
【Inchi】
InChI=1/BrH/h1H
【InChIKey】
CPELXLSAUQHCOX-UHFFFAOYSA-N
【Canonical SMILES】
Br
【MOL File】
10035-10-6.mol

Chemical and Physical Properties

【Appearance】
colourless gas with a pungent, suffocating odour
【Density】
1.49 (48% aq.)
【Melting Point】
-11℃
【Boiling Point】
126-128℃
【Vapour】
654mmHg at 25°C
【Refractive Index】
n20/D 1.438
【Flash Point】
40℃
【Water】
soluble
【Solubilities】
soluble
【Color/Form】
Colorless gas
【Stability】
Stable. Incompatible with strong bases, strong oxidizing agents, ammonia, ozone, fluorine, water, metals. Air and light sensitive.
【Storage temp】
Refrigerator
【Computed Properties】
Molecular Weight:80.91194 [g/mol]
Molecular Formula:BrH
XLogP3-AA:1
H-Bond Donor:0
H-Bond Acceptor:0
Rotatable Bond Count:0
Exact Mass:79.926163
MonoIsotopic Mass:79.926163
Topological Polar Surface Area:0
Heavy Atom Count:1
Formal Charge:0
Complexity:0
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:1
Feature 3D Anion Count:1
Effective Rotor Count:0
Conformer Sampling RMSD:0.4
CID Conformer Count:1

Safety and Handling

【Hazard Codes】
C:Corrosive
【Risk Statements】
R10;R34;R37
【Safety Statements 】
S26;S45;S7/9
【HazardClass】
8
【Safety】

A poison gas. A corrosive irritant to the eyes, skin, and mucous membranes. Reacts violently with F2, Fe2O3, NH3, O3. When heated to decomposition or in reaction with water or steam it emits toxic and corrosive fumes of Br? and HBr.
Hazard Codes:?CorrosiveC,IrritantXi
Risk Statements: 35-37-34-10-36/37/38?
R35: Causes severe burns.?
R37: Irritating to respiratory system.
R34: Causes burns.?
R10: Flammable.?
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-45-7/9?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S7/9: Keep container tightly closed and in a well-ventilated place.
WGK Germany: 1
HazardClass: 8
PackingGroup of Hydrogen bromide (CAS NO.10035-10-6): II

【PackingGroup 】
II
【Sensitive】
Hygroscopic
【Skin, Eye, and Respiratory Irritations】
MAY BE HIGHLY IRRITATING TO EYES, SKIN, MUCOUS MEMBRANES, RESPIRATORY TRACT. /GAS/
Skin contact with the vapor or liquid causes severe tissue irritation. ...
The vapors of hydrogen bromide are severely irritating to the mucous membranes of the eyes and nose.
【Cleanup Methods】
1) VENTILATE AREA OF LEAK TO DISPERSE GAS. 2) IF IN GASEOUS FORM, STOP FLOW OF GAS. IF SOURCE OF LEAK IS A CYLINDER & LEAK CANNOT BE STOPPED IN PLACE, REMOVE LEAKING CYLINDER TO A SAFE PLACE IN OPEN AIR, & REPAIR LEAK OR ALLOW CYLINDER TO EMPTY. 3) IF IN LIQUID FORM, ALLOW TO VAPORIZE & DISPERSE THE GAS.
NEUTRALIZING AGENTS: FLUSH WITH WATER; APPLY POWDERED LIMESTONE, SLAKED LIME, SODA ASH, OR SODIUM BICARBONATE.
【Transport】
UN 1788
【Fire Fighting Procedures】
Extinguish fire using agent suitable for surrounding fire. Use flooding quantities of water. Use water spray to keep fire-exposed containers cool. Approach fire from upwind to avoid hazardous vapors. /Hydrobromic acid solution/
If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use water spray to knock-down vapors. /Hydrogen Bromide, Anhydrous/
If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. /Hydrobromic acid solutions/
【Formulations/Preparations】
Grades: Technical 40%; Medicinal 48%, 62% /Hydrobromic acid/
Anhydrous hydrogen bromide is commonly available in 99.8 % purity in cylinders containing 4.5, 13.6, or 59.1 kg at 2.2 MPa (22 bar) at 21.1 deg C.
【DOT Emergency Guidelines】
If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY. /Hydrogen bromide, anhydrous/ Table of Initial Isolation and Protective Action Distances for Hydrogen bromide, anhydrous Small Spills (from a small package or small leak from a large package) -------------------- First ISOLATE in all Directions 30 meters (100 feet) Then PROTECT persons Downwind during DAY: 0.1 kilometers (0.1 miles) Then PROTECT persons Downwind during NIGHT: 0.5 kilometers (0.3 miles) ==================== Large Spills (from a large package or from many small packages) -------------------- First ISOLATE in all Directions 180 meters (600 feet) Then PROTECT persons Downwind during DAY: 1.8 kilometers (1.1 miles) Then PROTECT persons Downwind during NIGHT: 5.7 kilometers (3.6 miles)
/GUIDE 125: GASES - CORROSIVE/ Health: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ Fire or Explosion: Some may burn, but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). Keep out of low areas. Ventilate closed spaces before entering. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ Evacuation: ... Fire: If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ Fire: Small fires: Dry chemical or CO2. Large fires: Water spray, fog or regular foam. Move containers from fire area if you can do it without risk. Do not get water inside containers. Damaged cylinders should be handled only by specialists. Fire involving tanks: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ Spill or Leak: Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Isolate area until gas has dispersed. /Hydrogen bromide, anhydrous/
/GUIDE 125: GASES - CORROSIVE/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. ... Keep victim warm and quiet. Keep victim under observation. Effects of contact or inhalation may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. /Hydrogen bromide, anhydrous/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Health: TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Fire or Explosion: Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate enclosed areas. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Evacuation: ... Fire: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Fire: Small fires: Dry chemical, CO2 or water spray. Large fires: Dry chemical, CO2, alcohol-resistant foam or water spray. Move containers from fire area if you can do it without risk. Dike fire control water for later disposal; do not scatter the material. Fire involving tanks or car/trailer loads: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. /Hydrobromic acid; Hydrobromic acid, solution/
/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. /Hydrobromic acid; Hydrobromic acid, solution/
【Reactivities and Incompatibilities】
The aqueous solution is a strong acid. Violent reaction with strong oxidizers, strong caustics, and many organic compounds causing fire and explosion hazard. Reacts with water forming hydrobromic acid. Incompatible with aliphatic amines, alkanolamines, alkylene oxides, aromatic amines, amides, ammonia, ammonium hydroxide, calcium oxide, epichlorohydrin, fluorine, isocyanates, oleum, organic anhydrides, sulfuric acid, sodium tetrahydroborate, vinyl acetate. Hydrobromic acid is highly corrosive to most metals forming flammable hydrogen.
MODERATELY REACTIVE WITH WATER WITH EVOLUTION OF HEAT /LIQUID/
THE REACTION OF FLUORINE WITH GASEOUS OR AQUEOUS HYDROBROMIC ACID IS ACCOMPANIED BY FLAME.
... Reaction with water or steam it emits toxic and corrosive fumes of Br- and HBr.
/HYDROGEN BROMIDE & OZONE/ REACT INSTANTANEOUSLY, EXPLODING EXCEPT AT LOW PRESSURE OF 2-3 MM HG. /GAS/
The reaction of /hydrogen bromide and ammonia/ is vigorous even at -80 deg C with intensely dried reactants.
Strong oxidizers, strong caustics, moisture, copper, brass, zinc (Note: Hydrobromic acid is highly corrosive to most metals).
Reacts violently with a broad range of materials, including most metals. /Hydrobromic acid solution/
During preparation of hydrogen bromide by addition of bromine to a suspension of red phosphorus in water, the later must be freshly prepared to avoid the possibility of explosion.
【Other Preventative Measures】
VENTILATION CONTROL: ... SHOULD BE HANDLED ONLY IN ADEQUATELY VENTILATED AREAS. A CHECK VALVE, VACUUM BREAK, OR TRAP SHOULD ALWAYS BE USED TO PREVENT FOREIGN MATERIALS FROM BEING SUCKED BACK INTO CYLINDER BECAUSE THIS CAN CAUSE THE DEVELOPMENT OF DANGEROUS PRESSURES.
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
The worker should immediately wash the skin when it becomes contaminated. /Solution/
Work clothing that becomes wet or significantly contaminated should be removed and replaced. /Solution/
SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.
If material not involved in fire: Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Neutralize spilled material with crushed limestone, soda ash, or lime. Do not use water on material itself. /Hydrogen Bromide, Anhydrous/
If material not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Neutralize spilled material with crushed limestone, soda ash, or lime. /Hydrobromic acid solutions/
Personnel protection: Avoid breathing vapors. Keep upwind. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriaet personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. ... If contact with the material anticipated, wear appropriate chemical protective equipment. /Hydrobromic acid solutions/
Evacuation: If fire is prolonged and material is confined in the container? consider evacuation of one (1) mile radius. If fire becomes uncontrollable or container is exposed to direct flame consider evacuation of one (1) mile radius. /Hydrogen Bromide, Anhydrous/
【Protective Equipment and Clothing】
FULL FACE MASK & ACID GAS CANISTER; SELF CONTAINED BREATHING APPARATUS; CHEMICAL GOGGLES; RUBBER APRON & GLOVES; ACID PROOF CLOTHING; SAFETY SHOWER.
Wear special protective clothing and positive pressure self-contained breathing apparatus.
Wear appropriate personal protective clothing to prevent skin contact. /Solution/
Compressed gases may create low temperatures when they expand rapidly. Leaks and uses that allow rapid expansion may cause a frostbite hazard. Wear appropriate personal protective clothing to prevent the skin from becoming frozen.
Wear appropriate eye protection to prevent eye contact. /Solution/
Wear appropriate eye protection to prevent eye contact with the liquid that could result in burns or tissue damage from frostbite.
Eyewash fountains should be provided in areas where there is any possbility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. /Liquid/
Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] /Solution/
Quick drench facilities and/or eyewash fountains should be provided within the immediate work area for emergency use where there is any possibility of exposure to liquids that are extremely cold or rapidly evaporating.
Respiration Recommedations: Up to 30 ppm: (Assigned Protection Factor = 25) Any supplied-air respirator operated in a continuous-flow mode. Substance causes eye irritation or damage; eye protection needed./(Assigned Protection Factor = 25) Any powered, air-purifying respirator with acid gas cartridge(s). Substance causes eye irritation or damage; eye protection needed./(Assigned Protection Factor = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted acid gas canister./(Assigned Protection Factor = 50) Any self-contained breathing apparatus with a full facepiece./(Assigned Protection Factor = 50) Any supplied-air respirator with a full facepiece.
Respiration Recommedations: Emergency or planned entry into unknown concentrations or IDLH conditions: (Assigned Protection Factor = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode./(Assigned Protection Factor = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus.
Respiration Recommedations: Escape: (Assigned Protection Factor = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted acid gas canister/Any appropriate escape-type, self-contained breathing apparatus.
SRP: When working with strong solutions of acids or bases or other caustic or corrosive materials, always wear a full face mask. When working with caustic or corrosive gases or vapors, a full face mask will not protect the eyes or prevent inhaling the material. A full face respirator is required.
【Specification】

? Hydrogen bromide (CAS NO.10035-10-6), its Synonyms are Hydrobromic acid ; Acide bromhydrique ; Acido bromhidrico ;? Anhydrous hydrobromic acid ; Bromowodor ; Bromure d'hydrogene anhydre ; Bromuro de hidrogeno anhidro ; Bromwasserstoff ; Hydrogen bromide, anhydrous . It is colourless liquid with a strong irritating odour.

【Report】

Reported in EPA TSCA Inventory.

【Disposal Methods】
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Stir hydrogen bromide slowly into a large vol of a soln containing soda ash and slaked lime.

Use and Manufacturing

【Use and Manufacturing】
Methods of Manufacturing

... Commercially by direct combination of elements at 375 deg C preferably over a catalyst such as platinized silica gel or platinized asbestos. /Hydrogen bromide gas/
Prepn: by dissolving hydrogen bromide in water, or by distilling from a mixture of sodium bromide and 50% sulfuric acid. /Hydrobromic acid/
The anhydrous gas is produced industrially by burning bromine in the presence of excess hydrogen at 500 deg C or by reacting it with hydrogen at 375 deg C over platinized silica gel or platinized asbestos catalyst. Generation of hydrogen bromide as a byproduct during bromination of aromatic compounds is another major source of the industrial gas. In either case, entrained bromine can be removed by scrubbing with phosphorous acid or by activated carbon. The gas is liquefied by compression for storage and shipment in cylinders. Methods for laboratory preparation include reaction of bromine with tetrahydronaphthalene or with sulfur and water.
U.S. Production

(1977) 4.99X10+9 G
Production volumes for non-confidential chemicals reported under the Inventory Update Rule. /Hydrobromic acid/ Year Production Range (pounds) 1986 >500 thousand - 1 million 1990 >10 thousand - 500 thousand 1994 >10 thousand - 500 thousand 1998 No Reports 2002 No Reports
【Usage】

In analytical chemistry & organic preparations.

【Sampling Procedures】
AIR IS COLLECTED IN A SILICA GEL SAMPLING TUBE AT A FLOW RATE OF 0.2 L/MIN FOR A 4 HR PERIOD FOR DETERMINATION BY ION CHROMATOGRAPHY. ANAL RANGE FOR HBR IS 0.2-20 UG/ML.

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